JP2015519448A - 第1の外側の感圧接着性の面および第2の外側の熱活性化性の面を備えた両面接着テープ - Google Patents
第1の外側の感圧接着性の面および第2の外側の熱活性化性の面を備えた両面接着テープ Download PDFInfo
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- JP2015519448A JP2015519448A JP2015514407A JP2015514407A JP2015519448A JP 2015519448 A JP2015519448 A JP 2015519448A JP 2015514407 A JP2015514407 A JP 2015514407A JP 2015514407 A JP2015514407 A JP 2015514407A JP 2015519448 A JP2015519448 A JP 2015519448A
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- layer
- adhesive tape
- double
- sided adhesive
- sensitive adhesive
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
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- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
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- C09J7/10—Adhesives in the form of films or foils without carriers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/16—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating
- B32B37/18—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of discrete sheets or panels only
- B32B37/182—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of discrete sheets or panels only one or more of the layers being plastic
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- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0008—Electrical discharge treatment, e.g. corona, plasma treatment; wave energy or particle radiation
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- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
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Abstract
Description
・層Aは、化学的に熱での開始により架橋された感圧接着材料層または化学的に熱での開始により架橋された感圧接着性の支持層であり、
・層Bは、熱可塑性プラスチックをベースとする層であり、
・層Aと層Bは相互に直接接触しており、かつ
・層Bのうち層Aと直接接触している表面はコロナ前処理またはプラズマ前処理されており、
・コロナ前処理またはプラズマ前処理は、窒素、二酸化炭素、もしくは希ガス、またはこれらガスの少なくとも2種で構成された混合物から成る雰囲気中で行われた。
感圧接着材料層または感圧接着性の支持層を特徴づけるため、動的機械分析(DMA)により貯蔵弾性率G’および損失弾性率G”の決定が行われた。
G’=τ/γ・cos(δ)(τ=ずり応力、γ=変形、δ=位相角=ずり応力ベクトルと変形ベクトルの間の位相ずれ)。
G”=τ/γ・sin(δ)(τ=ずり応力、γ=変形、δ=位相角=ずり応力ベクトルと変形ベクトルの間の位相ずれ)。
感圧接着材料層または感圧接着性の支持層を特徴づけるため、動的機械分析(DMA)によりさらに複素粘度の決定が行われた。
(G*=複素せん断弾性率、ω=角周波数)。
(G”=粘性率(損失弾性率)、G’=弾性率(貯蔵弾性率))。
G”=τ/γ・sin(δ)(τ=ずり応力、γ=変形、δ=位相角=ずり応力ベクトルと変形ベクトルの間の位相ずれ)。
G’=τ/γ・cos(δ)(τ=ずり応力、γ=変形、δ=位相角=ずり応力ベクトルと変形ベクトルの間の位相ずれ)。
ω=2π・f(f=周波数)。
剥離力は、PSTC−101に依拠して決定された。決定は温度23℃+/−1℃および相対湿度50%+/−5%の試験雰囲気で行われた。本発明による接着テープと試験土台から成る複合品が作製され、この試験土台は、使用された層Bの熱可塑性プラスチックに合わせて選択された。試験土台は常に、それぞれ使用された層Bの熱可塑性プラスチックに対応するように同じプラスチック種から選択された。つまり、例えば層Bの熱可塑性プラスチックがポリウレタンであれば、熱可塑性ポリウレタンの試験土台も選択された。ポリプロピレンタイプの場合には、これに加えてさらに市販の、Meteor Gummiwerke社の様々なショアA硬度のEPDMプロファイルを試験土台として使用した。
せん断試験は、試験規則PSTC−107に依拠して行われた。試験サンプルは、それぞれ2枚の本発明による接着テープ細長片を層Bで相互に、ホットエアガンを用いたホットラミネート加工によって溶着して準備し、これにより両面で感圧接着性の接着テープサンプルができた。この両面で感圧接着性の接着テープサンプルを、2枚のスチールプレート(ASTM A 666に基づくステンレス鋼302;50mm×125mm×1.1mm、光輝焼なましされた表面、表面粗さ:ベースラインからの算術平均偏差が50±25nm)の間に接着し、2kgの重量で4回押圧し、その後、比較的長い時間の後に接着テープサンプルに不具合が生じるように選択された一定のせん断負荷に継続的に曝した。層Aと層Bの間の結合が弱くなるかどうか、または層内で不具合が生じるかどうか、および保持時間がどのくらいかを分単位で確定した。
老朽化挙動を確定するため、剥離力を測定するために作製したような本発明による接着テープと土台から成る複合品を、選択された雰囲気条件で貯蔵した。
・貯蔵a):85℃および相対湿度85%の雰囲気中での2週間の貯蔵
・貯蔵b):4時間−40℃、4時間加熱/冷却、4時間80℃/相対湿度80%のサイクルでの2週間の交互雰囲気貯蔵
静的ガラス転移温度の決定は、DIN53765に基づく示差走査熱量測定によって行われる。ガラス転移温度Tgについての表示は、個々の場合において別の記載がなければ、DIN53765:1994−03に基づくガラス転移温度の値Tgに関している。
平均分子量Mwもしくは平均分子量MNならびに多分散度Dの決定は、ゲル浸透クロマトグラフィ(GPC)によって行われた。溶離液として、0.1体積%のトリフルオロ酢酸を含むTHFが用いられた。測定は25℃で行った。プレカラムとして、PSS−SDV、5μm、103Å、ID8.0mm×50mmを使用した。分離のために、カラムPSS−SDV、5μm、103Å、105Å、および106Åが、それぞれID8.0mm×300mmで用いられた。試料濃度は4g/lであり、貫流量は1分当たり1.0mlであった。PMMA標準に対して測定された。
ポリマーおよびコポリマーの溶融温度は、DIN53765:1994−03に基づく示差走査熱量測定(DSC)を用いた熱量測定によって決定される。加熱曲線は、10K/minの加熱速度で延びている。サンプルは窒素雰囲気中で、穴の開いた蓋を備えたAl製るつぼ内で測定する。第2の加熱曲線を評価する。溶融温度は、サーモグラムにおけるピークとして認識することができる。最大の実熱量が生じた温度を溶融温度として記録する。
ポリアクリレート感圧接着材料を製造するために下記の原料を使用した。
プレポリマー100重量部:Desmodur W4.54重量部であった。
剥離力:剥離力試験では、例1〜18で常に、層A内での凝集の不具合が確定された。例1〜14では、層Aの凝集に不具合が生じる力、つまり割裂力は25〜30N/cmであった。
Claims (15)
- 少なくとも二層の、層Aおよび層Bから成る製品構造を有し、第1の外側の感圧接着性の面および第2の外側の熱活性化性の面を備えた両面接着テープであって、
層Aが、化学的に熱での開始により架橋された感圧接着材料層または化学的に熱での開始により架橋された感圧接着性の支持層であり、
層Bが、熱可塑性プラスチックをベースとする層であり、
層Aと層Bが相互に直接接触しており、かつ
層Bのうち層Aと直接接触している表面がコロナ前処理またはプラズマ前処理された両面接着テープにおいて、
コロナ前処理またはプラズマ前処理が、窒素、二酸化炭素、もしくは希ガス、またはこれらのガスの少なくとも2種で構成された混合物から成る雰囲気中で行われたことを特徴とする両面接着テープ。 - 層Bのコロナ前処理またはプラズマ前処理された表面と接触している層Aが、化学的に架橋された状態で、層Bのコロナ前処理またはプラズマ前処理された表面と接触されたことを特徴とする請求項1に記載の両面接着テープ。
- 層Aを架橋するために、追加的な化学線も電離放射線も使用されないことを特徴とする請求項1または2に記載の両面接着テープ。
- 層Aが、ホットメルト方法、特に押出成形方法において製造された層であることを特徴とする請求項1〜3のいずれか一つに記載の両面接着テープ。
- 層Aが、ポリアクリレートをベースとする層であることを特徴とする請求項1〜4のいずれか一つに記載の両面接着テープ。
- 層Aが、ポリウレタンをベースとする層であることを特徴とする請求項1〜5のいずれか一つに記載の両面接着テープ。
- 層Aが、発泡されているかまたは発泡体のような稠度を有することを特徴とする請求項1〜6のいずれか一つに記載の両面接着テープ。
- 層Aのうち層Bのコロナ前処理またはプラズマ前処理された表面と直接は接触していない表面が、さらなる層またはさらなる一連の層と直接接触しており、その際、外側の層が感圧接着材料層であることを特徴とする請求項1〜7のいずれか一つに記載の両面接着テープ。
- 層Bが、ポリオレフィンまたはポリオレフィン混合物をベースとする層であることを特徴とする請求項1〜8のいずれか一つに記載の両面接着テープ。
- 層Bが、ポリプロピレンコポリマー、またはポリプロピレンコポリマーおよび他のポリオレフィンから成る混合物をベースとする層であることを特徴とする請求項1〜9のいずれか一つに記載の両面接着テープ。
- 層Bが、140℃以上で180℃以下、好ましくは150℃以上で170℃以下のDSCにより確定された溶融温度を有することを特徴とする請求項1〜10のいずれか一つに記載の両面接着テープ。
- 層Aのうち層Bのコロナ前処理またはプラズマ前処理された表面と接触している表面が、空気または酸素または窒素または二酸化炭素または希ガスまたは挙げたガスの混合物から成る雰囲気中でコロナ前処理されたことを特徴とする請求項1〜11のいずれか一つに記載の両面接着テープ。
- 層Aと層Bが、コロナ前処理またはプラズマ前処理の直後に行われる被覆プロセスまたはラミネートプロセスにおいて相互に直接接触されることを特徴とする請求項1〜12のいずれか一つに記載の両面接着テープの製造方法。
- 請求項1〜13のいずれか一つに記載の接着テープと、EPDMまたは別のゴム状材料から成る熱可塑性プラスチック製の物体とを含む複合品を製造するための請求項1〜13のいずれか一つに記載の両面接着テープの使用。
- 特に、自動車組立のような車両組立において、EPDMまたは別のゴム状材料から成るプロファイルを貼り付けるための請求項1〜14のいずれか一つに記載の両面接着テープの使用。
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- 2013-05-15 CN CN201380027799.7A patent/CN104379691B/zh not_active Expired - Fee Related
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- 2013-05-15 KR KR1020147037011A patent/KR101987865B1/ko active IP Right Grant
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Also Published As
Publication number | Publication date |
---|---|
US9920223B2 (en) | 2018-03-20 |
US20150159053A1 (en) | 2015-06-11 |
CA2873263A1 (en) | 2013-12-05 |
DE102012209116A1 (de) | 2013-12-05 |
KR20150018849A (ko) | 2015-02-24 |
CN104379691B (zh) | 2017-09-01 |
EP2855612B1 (de) | 2019-09-04 |
EP2855612B2 (de) | 2022-06-22 |
JP6216780B2 (ja) | 2017-10-18 |
EP2855612A1 (de) | 2015-04-08 |
KR101987865B1 (ko) | 2019-06-11 |
WO2013178462A1 (de) | 2013-12-05 |
MX2014013834A (es) | 2015-02-04 |
CN104379691A (zh) | 2015-02-25 |
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